72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
|
//===- TpiHashing.h ---------------------------------------------*- C++ -*-===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#ifndef LLVM_DEBUGINFO_PDB_TPIHASHING_H
|
||
|
|
#define LLVM_DEBUGINFO_PDB_TPIHASHING_H
|
||
|
|
|
||
|
|
#include "llvm/DebugInfo/CodeView/TypeRecord.h"
|
||
|
|
#include "llvm/Support/Error.h"
|
||
|
|
|
||
|
|
namespace llvm {
|
||
|
|
namespace pdb {
|
||
|
|
|
||
|
|
Expected<uint32_t> hashTypeRecord(const llvm::codeview::CVType &Type);
|
||
|
|
|
||
|
|
struct TagRecordHash {
|
||
|
|
explicit TagRecordHash(codeview::ClassRecord CR, uint32_t Full,
|
||
|
|
uint32_t Forward)
|
||
|
|
: FullRecordHash(Full), ForwardDeclHash(Forward), Class(std::move(CR)) {
|
||
|
|
State = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
explicit TagRecordHash(codeview::EnumRecord ER, uint32_t Full,
|
||
|
|
uint32_t Forward)
|
||
|
|
: FullRecordHash(Full), ForwardDeclHash(Forward), Enum(std::move(ER)) {
|
||
|
|
State = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
explicit TagRecordHash(codeview::UnionRecord UR, uint32_t Full,
|
||
|
|
uint32_t Forward)
|
||
|
|
: FullRecordHash(Full), ForwardDeclHash(Forward), Union(std::move(UR)) {
|
||
|
|
State = 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
uint32_t FullRecordHash;
|
||
|
|
uint32_t ForwardDeclHash;
|
||
|
|
|
||
|
|
codeview::TagRecord &getRecord() {
|
||
|
|
switch (State) {
|
||
|
|
case 0:
|
||
|
|
return Class;
|
||
|
|
case 1:
|
||
|
|
return Enum;
|
||
|
|
case 2:
|
||
|
|
return Union;
|
||
|
|
}
|
||
|
|
llvm_unreachable("unreachable!");
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
union {
|
||
|
|
codeview::ClassRecord Class;
|
||
|
|
codeview::EnumRecord Enum;
|
||
|
|
codeview::UnionRecord Union;
|
||
|
|
};
|
||
|
|
|
||
|
|
uint8_t State = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
/// Given a CVType referring to a class, structure, union, or enum, compute
|
||
|
|
/// the hash of its forward decl and full decl.
|
||
|
|
Expected<TagRecordHash> hashTagRecord(const codeview::CVType &Type);
|
||
|
|
|
||
|
|
} // end namespace pdb
|
||
|
|
} // end namespace llvm
|
||
|
|
|
||
|
|
#endif // LLVM_DEBUGINFO_PDB_TPIHASHING_H
|